z-york commented on pull request #2113:
URL: https://github.com/apache/hbase/pull/2113#issuecomment-662156736


   > > If hbase:meta points to the correct RS, theoretically, no writes should 
come to this RS, right?
   > 
   > No. A client which spans the lifetime of your cluster (prior to shutdown, 
destruction, and recreation) could potentially have a cached region location. 
This is why fencing (e.g. HDFS lease recovery) is super-important for us. A 
client could presumably continue to try to write to a RS who has gone haywire.
   
   Doesn't a SCP trigger log splitting (and therefore recoverLease) which would 
handle this case?


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